Preheat oven to 500 degrees. Cut slits in roast and insert cloves of garlic (I use about 4-5 small cloves on a 3 # roast), season roast with pepper. Place roast in oven, fat side up and roast for 5 minutes per pound. Turn off oven and let rest WITHOUT OPENING OVEN DOOR for 2 hours. Turn oven to one of the following settings and roast as desired.
half hour @ 90ºC or Rare half hour @ 150ºC or Medium 1 hour @ 150ºC or well done.